/[classpath]/classpath/java/awt/geom/QuadCurve2D.java
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revision 1.3 by graydon, Fri Jul 18 19:35:02 2003 UTC revision 1.4 by brawer, Tue Oct 21 13:48:26 2003 UTC
# Line 1  Line 1 
1  /* QuadCurve2D.java -- represents a parameterized quadratic curve in 2-D space  /* QuadCurve2D.java -- represents a parameterized quadratic curve in 2-D space
2     Copyright (C) 2002 Free Software Foundation     Copyright (C) 2002, 2003 Free Software Foundation
3    
4  This file is part of GNU Classpath.  This file is part of GNU Classpath.
5    
# Line 89  public abstract class QuadCurve2D implem Line 89  public abstract class QuadCurve2D implem
89    public static double getFlatnessSq(double x1, double y1, double cx,    public static double getFlatnessSq(double x1, double y1, double cx,
90                                       double cy, double x2, double y2)                                       double cy, double x2, double y2)
91    {    {
92      // XXX Implement.      return Line2D.ptSegDistSq(x1, y1, x2, y2, cx, cy);
     throw new Error("not implemented");  
93    }    }
94    public static double getFlatness(double x1, double y1, double cx, double cy,    public static double getFlatness(double x1, double y1, double cx, double cy,
95                                     double x2, double y2)                                     double x2, double y2)
96    {    {
97      return Math.sqrt(getFlatnessSq(x1, y1, cx, cy, x2, y2));      return Line2D.ptSegDist(x1, y1, x2, y2, cx, cy);
98    }    }
99    public static double getFlatnessSq(double[] coords, int offset)    public static double getFlatnessSq(double[] coords, int offset)
100    {    {
101      return getFlatnessSq(coords[offset++], coords[offset++],      return Line2D.ptSegDistSq(coords[offset], coords[offset + 1],
102                           coords[offset++], coords[offset++],                                coords[offset + 4], coords[offset + 5],
103                           coords[offset++], coords[offset++]);                                coords[offset + 2], coords[offset + 3]);
104    }    }
105    public static double getFlatness(double[] coords, int offset)    public static double getFlatness(double[] coords, int offset)
106    {    {
107      return Math.sqrt(getFlatnessSq(coords[offset++], coords[offset++],      return Line2D.ptSegDist(coords[offset], coords[offset + 1],
108                                     coords[offset++], coords[offset++],                              coords[offset + 4], coords[offset + 5],
109                                     coords[offset++], coords[offset++]));                              coords[offset + 2], coords[offset + 3]);
110    }    }
111    public double getFlatnessSq()    public double getFlatnessSq()
112    {    {
113      return getFlatnessSq(getX1(), getY1(), getCtrlX(), getCtrlY(),      return Line2D.ptSegDistSq(getX1(), getY1(),
114                           getX2(), getY2());                                getX2(), getY2(),
115                                  getCtrlX(), getCtrlY());
116    }    }
117    public double getFlatness()    public double getFlatness()
118    {    {
119      return Math.sqrt(getFlatnessSq(getX1(), getY1(), getCtrlX(), getCtrlY(),      return Line2D.ptSegDist(getX1(), getY1(),
120                                     getX2(), getY2()));                              getX2(), getY2(),
121                                getCtrlX(), getCtrlY());
122    }    }
123    
124    public void subdivide(QuadCurve2D l, QuadCurve2D r)    public void subdivide(QuadCurve2D l, QuadCurve2D r)

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